#0A2017
Closest named color: Rich Black (#0D1B2A). oklch(22.2% 0.033 164.5), rgb(10, 32, 23).
Aa
White text reads best on this color (17.04:1).
About this color
#0A2017 is a very dark, muted green. In OKLCH its lightness is 22%, its chroma 0.033 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.048 away. White text reads best on it, at 17.04:1.
| Hue family | Greens |
| Lightness | very dark (22%) |
| Chroma | muted (0.033) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.23:1 |
| White text | 17.04:1 |
Values
| HEX | #0A2017 |
| RGB | rgb(10, 32, 23) |
| HSL | hsl(155, 52%, 8%) |
| OKLCH | oklch(22.2% 0.033 164.5) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #0A2017 | 17.04:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #0A2017 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #0A2017 text on white | 17.04:1 | AAA | Lc 103.9 | Preferred for body text |
| #0A2017 text on black | 1.23:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3ECE8
oklch(93.5% 0.011 167.8)
-
Step 200
200
#CDDED5
oklch(88.5% 0.022 163)
-
Step 300
300
#AAC9BA
oklch(80.9% 0.039 164.6)
-
Step 400
400
#7BAE96
oklch(70.8% 0.065 163.9)
-
Step 500
500
#57997D
oklch(63.1% 0.081 164.8)
-
Step 600
600
#398466
oklch(55.7% 0.089 164.5)
-
Step 700
700
#2B6F55
oklch(49% 0.081 165)
-
Step 800
800
#255B45
oklch(42.8% 0.069 164)
-
Step 900
900
#244A3A
oklch(37.6% 0.052 164.5)
-
Step 950
950 (this color)
#0A2017
oklch(22.2% 0.033 164.5)
#0A2017 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #1F1D17 | 0.033 |
| Deuteranopia (no green cones) | #1C1B18 | 0.032 |
| Tritanopia (no blue cones) | #04201D | 0.012 |
| Achromatopsia (no color) | #1C1C1C | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A2017
#0A2017
oklch(22.2% 0.033 164.5)
- #26151F
#26151F
oklch(22.3% 0.033 343.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #0A2017, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.048
- Jet #212529 ΔE 0.052
- Dark #1B2431 ΔE 0.057
- Rich Navy #001219 ΔE 0.062
- Dark Forest Green #002D04 ΔE 0.064
- Very Dark Green #062E03 ΔE 0.067
- Oxford Blue #1B263B ΔE 0.074
- Almost Black #070D0D ΔE 0.074
Use #0A2017 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.